Question

我一直在尝试制定推送通知的扩展，我没有应用程序的包名称（因为扩展将在任何数量的应用程序中使用而不进行修改）。我在清单中有以下信息 -

<receiver
            android:name=".GcmBroadcastReceiver"
            android:permission="com.google.android.c2dm.permission.SEND" >
            <intent-filter>
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
                <category android:name="App.package" />
            </intent-filter>
            <!-- Receive the registration id -->
          <intent-filter>
              <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
              <category android:name="App.package" />
          </intent-filter>
        </receiver>
        <service android:name=".GcmIntentService" />

清单可以按应用使用，不需要包含在扩展中。这是IntentService和BroadCastReceiver代码 -

public class GcmIntentService extends IntentService {

    public static final int NOTIFICATION_ID = 1;
    private NotificationManager mNotificationManager;
    NotificationCompat.Builder builder;
    private static final String TAG = "INTENT_TAG";

    public GcmIntentService() {
        super("GcmIntentService");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        Bundle extras = intent.getExtras();
        GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
        String messageType = gcm.getMessageType(intent);

        if (!extras.isEmpty()) {
            if (GoogleCloudMessaging.
                    MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
                sendNotification("Send error: " + extras.toString());
            } else if (GoogleCloudMessaging.
                    MESSAGE_TYPE_DELETED.equals(messageType)) {
                sendNotification("Deleted messages on server: " +
                        extras.toString());
            } else if (GoogleCloudMessaging.
                    MESSAGE_TYPE_MESSAGE.equals(messageType)) {

                for (int i=0; i<5; i++) {
                    Log.i(TAG, "Working... " + (i+1)
                            + "/5 @ " + SystemClock.elapsedRealtime());
                    try {
                        Thread.sleep(5000);
                    } catch (InterruptedException e) {
                    }
                }
                Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
                // Post notification of received message.
                sendNotification("Received: " + extras.toString());
                Log.i(TAG, "Received: " + extras.toString());
            }
        }
        GcmBroadcastReceiver.completeWakefulIntent(intent);
    }
    private void sendNotification(String msg) {
        mNotificationManager = (NotificationManager)
                this.getSystemService(Context.NOTIFICATION_SERVICE);

        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                new Intent(this, LoaderActivity.class), 0);

        NotificationCompat.Builder mBuilder =
                new NotificationCompat.Builder(this)
        //.setSmallIcon(R.drawable.ic_launcher)
        .setContentTitle("GCM Notification")
        .setStyle(new NotificationCompat.BigTextStyle()
        .bigText(msg))
        .setContentText(msg);

        mBuilder.setContentIntent(contentIntent);
        mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
    }
}

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        // Explicitly specify that GcmIntentService will handle the intent.
        ComponentName comp = new ComponentName(context.getPackageName(),
                GcmIntentService.class.getName());
        // Start the service, keeping the device awake while it is launching.
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);
    }
}

当我尝试从服务器发送消息时，通知永远不会被调用，就像接收者从未实例化或注册一样。是因为我的IntentService和BroacastReceiver都在默认包中吗？

Answer 1

您的GCMBroadcastReceiver会在应用的主程序包中查找GcmIntentService，因此如果它位于另一个程序包中，则无法找到它。

您可以使用以下代码启动意向服务：

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Intent gcmIntent = new Intent (context, GcmIntentService.class);
        gcmIntent.putExtras (intent.getExtras());
        startWakefulService(context, gcmIntent);
        setResultCode(Activity.RESULT_OK);
    }
}

此外，每个使用您的代码的应用程序（我不确定您的代码是应该用作库项目还是以其他方式使用），必须在其清单中使用正确的包名称声明广播接收器在intent-filter的类别中。您必须为GCM定义一个包含该包名称的权限。

使用Manifest注册广播接收器

1 个答案: